JK6839A Professional amplifier bluetooth usb mp3 player for home stereo

JK6839A Professional amplifier bluetooth usb mp3 player for home stereo 1, Professional amplifier bluetooth usb mp3 player for home stereo function. USB/SD/Line in (AUX)/FM MP3/WMA format Amplifier: 15W*2CH MP3 decorder support 32–320kbps FAT16 or FAT32 systems supported 4 Keys: MODE, NEXT/V+, PLAY/PAUSE/SCAN, PRE/V- With IR Remote control Optional:intall wireless transmitter module for bass speaker, transmit audio for amplifier receiver module of bass speaker.(Bass speaker